Machine for scouring cereals



G. E. FRIEDRICH. MACHINE FOR scoumms CEREALS. APPLICATION FILED JAN. 27II919.

' Patented Apr; 13,1920.

Gust-av E. Friedrich,

UNITED STATES PATENT OFFICE.

GUSTAV E. FRIEDRICH, 0F GRAND RAPIDS, MICHIGAN.

MACHINE FOR SCOURING CEREALS.

Application filed January 27, 1919.

To all whom it may concern Be it known that I, GUSTAV E. FRrnDRroH, acitizen of the United States, residing at Grand Rapids, in the county ofKent and State of Michigan, have invented certain new and usefulImprovements in Machines for scouring Cereals, of which the following isa specification.

My invention relates to improvements in machines for scouring andcleaning cereals, and its objects are: First, to provide a means wherebythe scouring and cleaning may be done rapidly and inexpensively; second,to provide a means whereby the quantity of cereal to be cleaned may beautomatically governed by the cleaner; third, to provide a means wherebythe scoured cereals may be conveyed to, and deposited into any desiredreceptacle as fast as scoured.

I attain these objects by the mechanism illustrated in the accompanyingdrawing, in which Figure 1 is a transverse vertical section of theoperating cylinder practically on the line 33 of Fig. 8. Fig. 2 is anelevation of the scouring arms and shaft. Fig. 3 is a sectionalelevation of the scouring cylinder practically on the line 11 of Fig. 1.Fig. 4: is a plan of the machine complete.

Similar numerals indicate similar parts throughout the several views.

"approximately as shown in Fig. 3. This case or cylinder is providedwith a receiving hopper 10 into which the cereals are delivered to becarried into the case by means of any available form of conveyer, asindicated at 11.

To complete the operative machine I mount a shaft 8 upon the supportingframe 1, and provide this shaft with a driving pulley 7 by means ofwhich it may be made to revolve by any of the well known means in usefor this purpose. Upon the suspended end of this shaft, and within thecylinder or case 2-%16, I mount a set of diverging arms 4, each armhaving a number of laterally projecting studs 6 Specification of LettersPatent.

Patented Apr. 13, 1920.

Serial No. 273,435.

that are so distributed as to be made to pass alternately between therows of studs, 5, on the sides or disks 2 and 3 for the purpose ofgradually moving the mass of cereals ever upwardly and outwardly towardthe spout or discharge 12. Thus, with the arms 4 made to revolve in thedirection indicated by the arrows in Figs. 2 and 3 it will be readilyunderstood that cereal entering at 11 will be made to move to the rightas it enters the cylinder, and will be carried around in this directionover the lower surface of the cylinder and upwardly to the dischargespout 12, and during all of its travel the movement of the studs 6 amongthe studs 5 will cause the cereal grains to constantly rub upon, andintermingle with each other, and with the surfaces of the studs, thuseffectually removing foreign matter by constant and repeated friction.

The conveyor 11' is made to revolve from the shaft 8 by means of anyavailable form of belt connection, as indicated at 9 in Fig. 1. Thedischarge of the cereal from the machine, after scouring, is governed bythe gate 13, which is pivotally mounted in the spent 12, as at 17, andarranged to stand, normally, closed and to be forced open by thepressure of the cereal as it is being forced upwardly and against thegate, and the pressure of the gate against the approaching cereal isgoverned by the weight 14 which may be moved toward, or from v the gateupon the arm 18, to increase or diminish the pressure against the cerealand control the discharge of cereal accordingly.

The discharge tube is placed upon, or near the vertical center of thecylinder so that the grain will be thoroughly intermingled and scouredas it is forced down one side of the machine and upwardly at the otherside of the machine to the discharge pipe.

15 indicates braces for supporting the arms 4.

I prefer that the studs 5, especially those located back of the arms 4,be formed and supported upon a separate disk, as indicated at 19 inFigs. 1 and 3, and the disk secured to the cylinder plate 2 by means ofscrews, bolts, or other available means, as indicated in Fig. 3, as bythis means I am enabled to remove the disk and studs for repairs, whennecessary, and thus avert the necessity of constructing an entirely newcylinder in case of accident to the studs. Furthermore, by this meansthe studs may be cast integral with the disks,

thus avoiding the unnecessary expense of otherwise attaching them to, orconnecting them with the disks.

What I claim as new in the art, is

In a machine for scouring cereals, a receiving cylinder having laterallydisposed studs extending inwardly from each side of the cylinder, ashaft concentrically mounted in the cylinder, arms mounted upon saidshaft within the cylinder, studs extending at right angles from eachside of the arms and arranged to pass between the rows of studs on thesides of the cylinder, a hopper and a conveyer for feeding cereals intothe cylinder, a discharge spout upon the periphery of the cylinderopposite from the inflow side of the cylinder and near the horizontalcenter line of the cylinder, a gate pivotally mounted in said spout, anarm connected with the gate, and a weight mounted upon the arm andarranged to govern the outflow of the scoured cereals by increasing ordiminishing the pressure of the gate against the cereal by the positionofthe weight on the arm. 7

Signed at Grand Rapids, Michigan, Jan uary 21, 1919.

GUSTAV E. FRIEDRICH

